1 /* 2     求符合给定条件的整数集 3 */ 4  5 #include 
     
       6  7 int main() 8 { 9     int n;10     int cnt = 0;11     int hundred, ten, unit;12 13     scanf_s("%d", &n);14     15     for (int i = 100; i < 1000; i++)16     {17         hundred = i / 100;18         ten = i % 100 / 10;19         unit = i % 10;20 21         if (hundred == ten || ten == unit || hundred == unit)22         {23             continue;24         }25 26         if (hundred >= n && hundred <= n+3)27         {28             if (ten >= n && ten <= n + 3)29             {30                 if(unit >= n && unit <= n + 3)31                 {32                     printf("%d", i);33                     cnt++;34                     if (cnt < 6)35                     {36                         printf(" ");37                     }38                     else39                     {40                         if (cnt == 6)41                         {42                             printf("\n");43                             cnt = 0;44                         }45                     }46                 }47             }            48         }49     }50 51     return 0;52 }
     

 修改版

1 #include 
     
       2  3 int main() 4 { 5     int a; 6     scanf_s("%d", &a); 7     int i, j, k; 8     int cnt = 0; 9 10     for (i = a; i <= a+3; i++)11     {12         for (j = a; j <= a + 3; j++)13         {14             for (k = a; k <= a + 3; k++)15             {16                 if (i != j && j != k && i != k)17                 {18                     printf("%d", i * 100 + j * 10 + k);19                     cnt++;20                     if (cnt < 6)21                     {22                         printf(" ");23                     }24                     else25                     {26                         if (cnt == 6)27                         {28                             printf("\n");29                             cnt = 0;30                         }31                     }32                 }33             }34         }35     }36 37     return 0;38 }